Illinois Salary & Paycheck Calculator 2026
Illinois has a flat 4.95% state income tax — same rate regardless of income. There's no separate Chicago city income tax (unlike NYC). Combined with federal + FICA, Illinois W-2 take-home is competitive with most progressive-tax states. The wrinkle: Illinois has the second-highest property tax burden in the country, so homeowners feel the tax burden differently than renters.
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Common: 100% up to 4%, or 50% up to 6%. For tiered formulas, switch to Tiered.Match dollars don't change your take-home (they go to the 401(k), not your paycheck) — but they show up below as "Total comp".
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Annual Take-Home
$58,668
≈ $4,889/mo · $2,256/biweekly · effective rate 16.78%
+ $3,000/yr employer 401(k) match → $78,000 total compensation
🏖️ Plan ahead with this take-home
Tax Breakdown
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Salary Calculator
Annual gross to take-home: federal + state + FICA + 401(k)/HSA modeling for all 50 states.
Calculate take-homeNo Tax on Tips Calculator
Apply the 2025 OBBBA tip deduction (up to $25,000) for servers, drivers, stylists, and other tipped workers.
Calculate tip take-homeOvertime Calculator
Apply the 2025 OBBBA 'No Tax on Overtime' deduction (up to $12,500) and see real savings.
Calculate OT take-home1099 Tax Calculator
1099, sole prop, or LLC: self-employment tax (15.3%) plus quarterly estimates.
Calculate SE taxIllinois State Tax Facts (2026)
Tax Structure
Flat 4.95%
Top Rate
4.95%
Standard Deduction
$2,775 personal exemption (2024, indexed)
Other State Payroll
None at state level
Notable Illinois payroll feature
Illinois has a flat 4.95% state income tax. Voters rejected a graduated income tax amendment in 2020. No additional state-level payroll taxes. Property tax in Illinois is the second-highest in the US (~2.05% effective), so the relatively moderate income tax is offset by very high property tax.
How a Illinois paycheck actually works
Withholding on an Illinois paycheck flows through Form IL-W-4, which is simpler than most state withholding forms because of the flat 4.95% rate — there's no bracket math, just allowances applied against a per-pay-period base. New hires from progressive-tax states often see a slight take-home jump in Illinois at incomes between $40K and $80K (the 4.95% flat rate is lower than top marginal rates in CA, NY, NJ, OR), and a corresponding loss above $200K (where progressive-state top rates exceed 4.95% but Illinois's flat rate doesn't progress). Chicago has no separate city income tax — Cook County also doesn't impose one — so Illinois paycheck math is genuinely just state + federal + FICA.
Take-home math at three tiers, Illinois single filer 2026: $60,000 → about $4,400 federal + $4,590 FICA + $2,376 IL state (after $2,775 personal exemption) = $11,366 deductions, take-home $48,634 (81%). $100,000 → $11,800 federal + $7,650 FICA + $4,810 IL = $24,260, take-home $75,740 (76%). $150,000 → $24,000 federal + $9,275 FICA + $7,285 IL = $40,560, take-home $109,440 (73%). Illinois's flat 4.95% is competitive against high-progressive-rate states for top earners but harsher on lower-income workers than progressive states with $0 brackets.
Illinois's signature tax-side variable is property tax, not income tax. The state's effective property tax rate runs 2.07% statewide — second only to New Jersey — and Cook County / DuPage County / Lake County average 2.2%–2.5%. A Chicago suburb homeowner in a $500K home pays roughly $11,000/year in property tax, often eclipsing state income tax in absolute dollars. Illinois's standard deduction is functionally a personal exemption ($2,775 single in 2026, indexed annually) — much smaller than federal, so Illinois taxable income runs higher than federal AGI. The state does not tax Social Security, IRA distributions, or 401(k) withdrawals, which makes Illinois unusually retiree-friendly despite the property tax burden.
The single highest-leverage tactic for Illinois W-2 earners is maxing pre-tax 401(k) plus the Bright Start 529 Illinois deduction (up to $10K single / $20K MFJ for in-state contributions). Combined with the state's exemption of all retirement income from state tax, the long-term Illinois retirement story is one of front-loaded savings (state tax deferred during work years) and back-loaded relief (zero state tax on withdrawal). Chicago-suburb homeowners should also evaluate the Illinois Senior Citizen Homestead Exemption when they reach 65 — it reduces assessed value by $5,000–$8,000 in most Cook-area townships, a $200–$400 annual property tax savings that compounds across retirement.
Illinois tax quirks worth knowing
- •No graduated income tax — voters rejected the Fair Tax amendment in 2020 by 55%–45%.
- •Illinois personal exemption is $2,775 (2024, slightly indexed), much smaller than federal standard deduction.
- •Cook County property tax averages over 2.4% effective — among the highest in the US. Suburban DuPage and Will County are ~1.8%–2.2%.
- •Illinois does NOT tax retirement income (pensions, 401(k)/IRA withdrawals, Social Security) — making it surprisingly favorable for retirees despite high income tax during working years.
Sources: federal brackets + standard deduction from IRS Rev. Proc. 2025-32; retirement contribution limits ($24,500 401(k), $4,400 HSA, $7,500 IRA) from IRS Notice 2025-67; FICA limits from the SSA 2026 Fact Sheet;Illinois state brackets verified against the Tax Foundation 2026 State Income Tax Rates compilation and the official IL-1040 Individual Income Tax Forms (IL Department of Revenue). Always cross-check with your state DOR before relying on any number for filing.
Federal payroll tax reference
Above-the-state-line, every Illinois paycheck owes federal income tax + FICA (Social Security + Medicare). The breakdowns: